doc: add release key for marco-ippolito

Author: marco-ippolito

README.md

@@ -775,6 +775,8 @@ Primary GPG keys for Node.js Releasers (some Releasers sign with subkeys):
   `108F52B48DB57BB0CC439B2997B01419BD92F80A`
 * **Ulises Gascón** <<[email protected]>>
   `A363A499291CBBC940DD62E41F10027AF002F8B0`
+* **Marco Ippolito** <<[email protected]>>
+  `CC68F5A3106FF448322E48ED27F5E38D5B0A215F`
 
 To import the full set of trusted release keys (including subkeys possibly used
 to sign releases):
@@ -790,6 +792,7 @@ gpg --keyserver hkps://keys.openpgp.org --recv-keys 890C08DB8579162FEE0DF9DB8BEA
 gpg --keyserver hkps://keys.openpgp.org --recv-keys C82FA3AE1CBEDC6BE46B9360C43CEC45C17AB93C
 gpg --keyserver hkps://keys.openpgp.org --recv-keys 108F52B48DB57BB0CC439B2997B01419BD92F80A
 gpg --keyserver hkps://keys.openpgp.org --recv-keys A363A499291CBBC940DD62E41F10027AF002F8B0
+gpg --keyserver hkps://keys.openpgp.org --recv-keys CC68F5A3106FF448322E48ED27F5E38D5B0A215F
 ```
 
 See [Verifying binaries](#verifying-binaries) for how to use these keys to